Display screen with a graphical user interface



The FIGURE is a front view of a display screen with a graphical user interface, showing our new design.

In the FIGURE, different stippling patterns indicate different regions of contrasting appearance.

The innermost broken line rectangle illustrates the display screen, and the remaining broken lines depict the environment of an electronic device. The broken lines form no part of the claimed design. 

CLAIM The ornamental design for a display screen with a graphical user interface, as shown and described. 